CN202992648U - Totally no-oil SF6 gas recovery inflation device - Google Patents
Totally no-oil SF6 gas recovery inflation device Download PDFInfo
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- CN202992648U CN202992648U CN 201220308640 CN201220308640U CN202992648U CN 202992648 U CN202992648 U CN 202992648U CN 201220308640 CN201220308640 CN 201220308640 CN 201220308640 U CN201220308640 U CN 201220308640U CN 202992648 U CN202992648 U CN 202992648U
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Abstract
The utility model relates to a totally no-oil SF6 gas recovery inflation device which comprises the following components: a first vacuum pump, a second vacuum pump, a first ball valve, a second ball valve, a first check valve, a second check valve, a negative-pressure recovering machine, a compressor, an electromagnetic valve, a safe exhaust valve and pipeline. The inlets of the first ball valve and the second ball valve are connected. The outlet of the first ball valve is connected with the air suction end of the first vacuum pump. The exhaust end of the first vacuum pump is connected with the air suction end of the second vacuum pump. The air inlet end of the safe exhaust valve is connected with the pipeline between the first vacuum pump and the second vacuum pump. The air exhaust end of the second vacuum pump is communicated with atmosphere. The outlet of the second ball valve is connected with the inlet of the electromagnetic valve. The outlet of the electromagnetic valve is connected with the negative-pressure recovering machine through pipeline. The negative-pressure recovering machine is connected with the inlet of the compressor through the second check valve and the pipeline. The air inlet end of the first check valve is connected with inlet pipeline of the electromagnetic valve, and the air outlet end is connected with inlet pipeline of the compressor. The totally no-oil SF6 gas recovery inflation device can ensure no contact between the SF6 gas and oil and prevents effect of oil component to the quality of the SF6 gas in principle.
Description
Technical field
The utility model belongs to the gas recovery techniques field, relates to a kind of gas and reclaims inflator, and especially a kind of oil-free SF6 gas reclaims inflator.
Background technique
At present, as insulation and arc-extinguishing medium, still do not have other efficient ways to substitute SF6 gas from technology, economy and ecological angle.SF6 gas is widely used in electrical equipment.From application, the SF6 circuit breaker is topmost field, substantially replaces the oil circuit breaker of 110kV and above.In addition, the transformer etc. that also comprises SF6 combined electric equipment, SF6 current-voltage transformer and small capacity.From various countries' development, SF6 gas instead insulating oil is the inexorable trend of development as arc extinguishing and insulating medium.Especially ultrahigh pressure reaches ten thousand volts of 50-100 when above, and SF6 gas arc extinguishing and insulating properties, ecological efficiency are particularly evident.Worldwide, SF6 gas becomes irreplaceable unique insulation at present and arc-extinguishing medium.Therefore in the ultrahigh pressure field, the purity of SF6 gas has just been risen to new high.
Use the compressor of oil lubrication to reclaim SF6 gas if SF6 gas reclaims inflator, must be mixed with oil gas or oil molecule in SF6 gas, even by oil strainer, can not guarantee definitely that oil-filtering rate reaches 100%.After not getting rid of in addition the oil strainer inefficacy, or the human operational error, a large amount of lubricant oil is sneaked into SF6 gas, must cause the high-voltage switch gear fault, and consequence is hardly imaginable!
Use the vacuum pump of oil lubrication to carry out vacuum pumping to the SF6 switch if SF6 gas reclaims inflator, if be misoperation in equipment unexpected outage in service or people, in unshielded measure situation, the lubricant oil in vacuum pump can directly return into high-voltage switch gear.Even arrange and anti-return solenoid, can not get rid of the anti-solenoid that returns and lose efficacy, or the people for other etc. factor cause lubricant oil to enter high-voltage switch gear, consequence is hardly imaginable equally!
The SF6 gas that this patent relates to reclaims inflator, is applied to exactly recovery, purification, processing, the storage of SF6 gas, then the special device that recharges.Simultaneously can be to carrying out vacuum pumping before the inflation of SF6 switch.
The model utility content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and provide a kind of and be applied to reclaim, purify, process, store, then the SF6 gas that recharges recovery inflator, it can be to carrying out vacuum pumping before the inflation of SF6 switch.
The purpose of this utility model solves by the following technical programs:
This oil-free SF6 gas reclaims inflator, comprises first and second oil-free vacuum pump, first and second ball valve, first and second safety check, oil-free negative pressure recycling machine, oil-free compressor, solenoid valve, safety exhaust and pipeline; The import of described first and second ball valve connects by pipeline, the outlet of the first ball valve connects the suction end of the first oil-free vacuum pump, the exhaust end of the first oil-free vacuum pump connects the suction end of the second oil-free vacuum pump by pipeline, the inlet end of described safety exhaust is connected on pipeline between first and second oil-free vacuum pump by pipeline, and the exhaust end of described the second oil-free vacuum pump is emptying; The outlet of described the second ball valve is connected to the import of solenoid valve by pipeline, the outlet of solenoid valve connects oil-free negative pressure recycling machine by pipeline, and described oil-free negative pressure recycling machine is connected the import of oil-free compressor by the second safety check with pipeline; The inlet end of described the first safety check is connected to by pipeline on the inlet pipeline of magnet valve, and the outlet side of the first safety check is connected on the inlet pipeline of oil-free compressor by pipeline.
The import of above-mentioned the second safety check is connected by the outlet of pipeline with oil-free negative pressure recycling machine, and the outlet of the second safety check is connected with the import of oil-free compressor by pipeline.
Oil-free SF6 gas of the present utility model reclaims inflator and adopts oil-free equipment, can guarantee that SF6 gas no longer contacts with oil, has stopped the impact of oil content on the SF6 GAS QUALITY from principle.Oil-free SF6 gas of the present utility model reclaims inflator and adopts oil-free equipment, do not need lubricant oil, do not need running check oil level or oil change more, safeguard simple, guaranteed that SF6 gas reclaims in the charge operation process, no matter subjective or objectively fault, can not pollute SF6 gas because of oil content.Thereby saved a large amount of human and material resources, financial resources, guaranteed the project installation progress, can create great economy and social benefit.
Description of drawings
Fig. 1 is equipment connection schematic diagram of the present utility model;
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Referring to Fig. 1, of the present utility model kind of oil-free SF6 gas reclaims inflator, comprise first and second oil-free vacuum pump 1,2, first and second ball valve V1, V2, first and second safety check V21, V22, oil-free negative pressure recycling machine 3, oil-free compressor 4, solenoid valve V31, safety exhaust V41 and pipeline; The import of first and second ball valve V1, V2 connects by pipeline, the outlet of the first ball valve V1 connects the suction end of the first oil-free vacuum pump 1, the exhaust end of the first oil-free vacuum pump 1 connects the suction end of the second oil-free vacuum pump 2 by pipeline, the inlet end of safety exhaust V41 is connected on pipeline between first and second oil-free vacuum pump 1,2 by pipeline, and the exhaust end of the second oil-free vacuum pump 2 is emptying; The outlet of the second ball valve V2 is connected to the import of solenoid valve V31 by pipeline, the outlet of solenoid valve V31 connects oil-free negative pressure recycling machine 3 by pipeline, and oil-free negative pressure recycling machine 3 is connected the import of oil-free compressor 4 by the second safety check V22 with pipeline; The inlet end of the first safety check V21 is connected to by pipeline on the inlet pipeline of magnet valve V31, and the outlet side of the first safety check V21 is connected on the inlet pipeline of oil-free compressor 4 by pipeline.The import of described the second safety check V22 is connected by the outlet of pipeline with oil-free negative pressure recycling machine 3, and the outlet of the second safety check V22 is connected by the import of pipeline with oil-free compressor 4.
Working procedure of the present utility model is as follows:
The effect of safety exhaust V41: when just beginning to vacuumize, a large amount of gas is extracted out by the first vacuum pump 1, and directly be discharged to atmosphere by safety exhaust V41 this moment.When being taken out container and reach certain vacuum, the first oil-free vacuum pump 1 air displacement significantly reduces, and safety exhaust V41 closes, and the gas of its eliminating is extracted out by the second oil-free vacuum pump 2, then is discharged in atmosphere.The intakeport of final the second oil-free vacuum pump 2 can make the relief opening of the first oil-free vacuum pump 1 reach lower vacuum, and the intakeport that makes the first oil-free vacuum pump 1 is reached higher level of vacuum.
When recovering device normally reclaims, open the second ball valve V2, start oil-free compressor 4, this moment, SF6 gas was discharged by the second ball valve V2, the first safety check V21, oil-free compressor 4, last outlet by oil-free compressor 4.When the suction port pressure of oil-free compressor 4 drops to 0 gauge pressure, pass through electric control system, opens solenoid valve V31, unlatching oil-free negative pressure recycling machine 3, under the suction and pressurization discharge effect of oil-free negative pressure recycling machine 3, SF6 gas is discharged by the second ball valve V2, solenoid valve V31, oil-free negative pressure recycling machine 3, the second safety check V22, oil-free compressor 4, last outlet by oil-free compressor 4.This moment, the relief opening of the first safety check V21 and the second safety check V22 was high pressure conditions, the suction port of the first safety check V21 is low-pressure state, so SF6 gas is can oppositely not pass through the first safety check V21, thereby reached the series operation of oil-free negative pressure recycling machine 3 with oil-free compressor 4, made the more thorough of SF6 gas recovery.
The utility model adopts vacuum pump to be the oil-free vacuum pump, can select eddy type or diaphragm type oil-free vacuum pump.The negative pressure recycling machine is also oil-free negative pressure recycling machine, mostly is eddy type, and diaphragm type is also arranged.Compressor is also oil-free compressor, and it is piston type.
Claims (2)
1. an oil-free SF6 gas reclaims inflator, it is characterized in that, comprise first and second oil-free vacuum pump (1,2), first and second ball valve (V1, V2), first and second safety check (V21, V22), oil-free negative pressure recycling machine (3), oil-free compressor (4), solenoid valve (V31), safety exhaust (V41) and pipeline; The import of described first and second ball valve (V1, V2) connects by pipeline, the outlet of the first ball valve (V1) connects the suction end of the first oil-free vacuum pump (1), the exhaust end of the first oil-free vacuum pump (1) connects the suction end of the second oil-free vacuum pump (2) by pipeline, the inlet end of described safety exhaust (V41) is connected on pipeline between first and second oil-free vacuum pump (1,2) by pipeline, and the exhaust end of described the second oil-free vacuum pump (2) is emptying; The outlet of described the second ball valve (V2) is connected to the import of solenoid valve (V31) by pipeline, the outlet of solenoid valve (V31) connects oil-free negative pressure recycling machine (3) by pipeline, and described oil-free negative pressure recycling machine (3) is connected the import of oil-free compressor (4) by the second safety check (V22) with pipeline; The inlet end of described the first safety check (V21) is connected to by pipeline on the inlet pipeline of solenoid valve (V31), and the outlet side of the first safety check (V21) is connected on the inlet pipeline of oil-free compressor (4) by pipeline.
2. oil-free SF6 gas according to claim 1 reclaims inflator, it is characterized in that, the import of described the second safety check (V22) is connected by the outlet of pipeline with oil-free negative pressure recycling machine (3), and the outlet of the second safety check (V22) is connected by the import of pipeline with oil-free compressor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308640 CN202992648U (en) | 2012-06-28 | 2012-06-28 | Totally no-oil SF6 gas recovery inflation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308640 CN202992648U (en) | 2012-06-28 | 2012-06-28 | Totally no-oil SF6 gas recovery inflation device |
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| Publication Number | Publication Date |
|---|---|
| CN202992648U true CN202992648U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220308640 Expired - Fee Related CN202992648U (en) | 2012-06-28 | 2012-06-28 | Totally no-oil SF6 gas recovery inflation device |
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| CN (1) | CN202992648U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511832A (en) * | 2012-06-28 | 2014-01-15 | 陕西冠笛通用电气有限公司 | Whole-series oil-free SF6 gas recovering and filling device |
| CN103743602A (en) * | 2013-11-26 | 2014-04-23 | 广西电网公司电力科学研究院 | Gas circulating apparatus applied to SF6 decomposer on-line monitoring equipment |
| CN105084325A (en) * | 2015-07-23 | 2015-11-25 | 刘静涛 | Sulfur hexafluoride recovery device and sulfur hexafluoride recovery vehicle |
| CN107422659A (en) * | 2017-04-07 | 2017-12-01 | 国网天津市电力公司 | A kind of control device for sulfur hexafluoride gas recovery refilling operation |
| CN108386713A (en) * | 2018-02-12 | 2018-08-10 | 国家电网公司 | A kind of insulating gas processing unit and its control method |
-
2012
- 2012-06-28 CN CN 201220308640 patent/CN202992648U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511832A (en) * | 2012-06-28 | 2014-01-15 | 陕西冠笛通用电气有限公司 | Whole-series oil-free SF6 gas recovering and filling device |
| CN103743602A (en) * | 2013-11-26 | 2014-04-23 | 广西电网公司电力科学研究院 | Gas circulating apparatus applied to SF6 decomposer on-line monitoring equipment |
| CN105084325A (en) * | 2015-07-23 | 2015-11-25 | 刘静涛 | Sulfur hexafluoride recovery device and sulfur hexafluoride recovery vehicle |
| CN105084325B (en) * | 2015-07-23 | 2017-11-10 | 刘静涛 | A kind of sulfur hexafluoride retracting device and sulfur hexafluoride recovery vehicle |
| CN107422659A (en) * | 2017-04-07 | 2017-12-01 | 国网天津市电力公司 | A kind of control device for sulfur hexafluoride gas recovery refilling operation |
| CN107422659B (en) * | 2017-04-07 | 2020-06-30 | 国网天津市电力公司 | Control device for sulfur hexafluoride gas recovery and recharging operation |
| CN108386713A (en) * | 2018-02-12 | 2018-08-10 | 国家电网公司 | A kind of insulating gas processing unit and its control method |
| CN108386713B (en) * | 2018-02-12 | 2023-12-01 | 国家电网公司 | Insulating gas treatment device and control method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20140628 |
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| EXPY | Termination of patent right or utility model |